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[help-GIFT] gift-write-feature-descs segfaults... (is the GIFT broken?)

From: Jonas Lindqvist
Subject: [help-GIFT] gift-write-feature-descs segfaults... (is the GIFT broken?)
Date: Sun, 27 Aug 2006 16:02:46 +0200


I'm (attempting to be) using the latest CVS version.

gift-write-feature-descs reads a PPM file on STDIN, and is supposed to output some kind of data that can be redirected into InvertedFileFeatureDescription.db.

However, now it crashes with a segmentation fault.

Here's what happens:
The file write_feature_descs.c, uses a function called init_feature_variables. It uses it with an int (colmap_size) as its only parameter. So where is this function defined? There is in fact a similar function in extract_block_features.c, but it takes no less than FOUR parameters.
Anyway, it crashes when it tries to use a function that is not linked.
I would have expected the linker to complain, and the compiler to at least warn, but maybe I'm too used to "too helpful" C++ compilers...

The prototype for init_feature_variables, in extract_block_features.c, changed from using one parameter, to using four, in revision 1.6, committed more than a month ago... Is anyone actually using the latest version?

With a segfaulting gift-write-feature-descs, the InvertedFileFeatureDescription.db file is always empty... Saves some space on the harddisk of course, but other than that it couldn't be all that good, right?

Does the GIFT work at all now?

Now it would have been nice to have SVN changesets, so that reverting a commit would revert all files that was committed...


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